Olof Dreijer
Dreijer performing with the Knife in 2006
Background information
Also known as	DJ Coolof, Oni Ayhun
Born	(1981-11-27) 27 November 1981 (age 43)
Origin	Nacka, Sweden
Genres	Techno house minimal
Occupations	Record producer DJ
Years active	1999–present
Labels	Rabid Records
Formerly of	The Knife
Website	Official The Knife website

Olof Björn Dreijer (born 27 November 1981) is a Swedish DJ and record producer, best known as one half of the electronic music duo the Knife, formed with his sibling Karin Dreijer.^[1]

Although the Knife very rarely performed live concerts, Olof performs as DJ Coolof in nightclubs across Europe. He only performs at nights or at festivals with equal gender representation on the lineup of artists – no more than 50% people who identify as men.^[2]

In late 2009 and early 2010, Olof released four EPs under the pseudonym Oni Ayhun.

In late 2010, he released a remix of Emmanuel Jal's "Kuar". In 2011, he produced the song "Jam" by Planningtorock from the album W.^[3]

Upon being asked to DJ in Tel Aviv, Dreijer stated that he supports the international cultural boycott of Israel and the BDS movement in support of Palestinian rights. Dreijer and The Knife have supported this boycott for many years.^[4]

as Oni Ayhun:

as Olof Dreijer:

• The Knife official website
• Oni Ayhun former website
• Olof Dreijer discography at MusicBrainz
• Resident Advisor DJ Page
• Discogs Profile